/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/DebugDrawQueue.h
void DrawDebugDirectionalArrow ( const FVector & LineStart, const FVector & LineEnd, float ArrowSize, const [FColor](API\Runtime\Core\Math\FColor) & Color, bool bPersistentLines, float LifeTime, uint8 DepthPriority, float Thickness )